3/4" Aqua Tyvek Wristbands for Events Identification Crowd Control, 1000 Count 1000 Pack Durable Tyvek wristband - Tyvek has the paper wristband appearance but actually plastic. Do it yourself customizable - Printable for appropriate printer types like Xerox Colorqube 8870. Durable & Reliable - Tear-proof, stretch-proof, and 102% waterproof 5-digit security code printed sequentially - Sequential code numbers will change with color. Vibrant color! Actual colors may vary slightly due to photographing. Great item for identification of your special events and parties. Alternate colors for repeated small parties.